You can't fix it since it's not a bug. Each train has a different texture for the destination display for each map (e.g. for Simvliet 2020, Rijndam 2020, Rijndam 2018). The SG4 has no such texture for Simvliet, since it was made for Rijndam, so unless Sjoerd adds a texture for Simvliet in the next version, it will be just black.

You can't fix it since it's not a bug. Each train has a different texture for the destination display for each map (e.g. for Simvliet 2020, Rijndam 2020, Rijndam 2018). The SG4 has no such texture for Simvliet, since it was made for Rijndam, so unless Sjoerd adds a texture for Simvliet in the next version, it will be just black.

I was playing in Rijndam... And in older versions (3.12) it used to work. That's why I assumed it is a bug.